Results 21 to 30 of about 337,484 (235)

An enriched Dual Boundary Element Method for Fracture Mechanics

open access: yesIOP Conference Series: Materials Science and Engineering, 2010
The direct collocation Boundary Element Method (BEM) has been enriched in the Partition of Unity sense by a set of functions known to describe the displacement field in the immediate vicinity of a crack tip. The Dual BEM approach is adopted to preclude the need for substructuring.
R Simpson, J Trevelyan
openaire   +1 more source

Nondiffusive variational problems with distributional and weak gradient constraints

open access: yesAdvances in Nonlinear Analysis, 2022
In this article, we consider nondiffusive variational problems with mixed boundary conditions and (distributional and weak) gradient constraints. The upper bound in the constraint is either a function or a Borel measure, leading to the state space being ...
Antil Harbir   +3 more
doaj   +1 more source

Study on seepage model of Multiple Horizontal wells with complex fracture networks in tight Reservoir Based on boundary element method

open access: yesNatural Gas Industry B, 2023
Horizontal well and volume fracturing technology are the key technologies to develop unconventional reservoirs. Tight reservoir is belonging to multi-scale seepage mediaafter fracturing, and theflow of fluid in it is extremely complicated. In this paper,
Zongxiao Ren   +6 more
doaj   +1 more source

Application of Natural Element Method in Numerical Simulation of Crack Propagation

open access: yesAdvances in Mechanical Engineering, 2013
The properties of interpolation of nodal data, ease of imposing essential boundary conditions, and the computational efficiency are some of the most important advantages of natural element method based on the non-Sibsonian interpolation over other ...
Wang Weidong   +3 more
doaj   +1 more source

Estimation of Ground Resisitivity Distribution Using 3D DRM Charge Simulation Modelling [PDF]

open access: yes, 2003
Resistivity distribution sounding of the non-homogeneous earth is important for electrical ground system design, geophysical prospecting and survey or monitoring the groundwater flow level.
Hayata, T.   +5 more
core   +1 more source

Hydrodynamics of an U-shaped OWC device in a two-layer fluid system

open access: yesEnergy Reports, 2022
In this article, the effectiveness of an U-shaped “oscillating water column wave energy converter device (OWC-WEC)” is investigated in a two-layer fluid system. To solve the BVP, the “dual boundary element method” (DBEM) is employed.
Kshma Trivedi, Santanu Koley
doaj   +1 more source

Boundary element dual reciprocity method with overlapping sub-domains [PDF]

open access: yesWIT Transactions on Modelling and Simulation, 2008
In this paper a numerical approach based on the Boundary Element Method (BEM) with overlapping sub-domains is presented. The approach simplifies the assembly of the equations arising from the BEM sub-domain methods and at the same time reduces the problems with near-singular or singular integrals that may arise in the integral equations.
B. Thanh Tu, V. Popov
openaire   +1 more source

Implementation of dual grid technique in BEM analysis of 3D contact problems

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The work is devoted to the practical application of dual grids in the boundary element method (BEM). Definitions of dual grids on the plane are given and algorithm constructing dual grid for a given triangulation is described.
Sergey Aleynikov, Alexander Sedaev
doaj  

Multiple crack propagation by DBEM in a riveted butt-joint: a simplified bidimensional approach [PDF]

open access: yesFracture and Structural Integrity, 2016
A Multi-Site Damage (MSD) crack growth simulation is presented, carried out by means of Dual Boundary Element Method (DBEM), in a two-dimensional analysis of a cracked butt-joint made of aluminium 2024 T3.
R. Citarella
doaj   +3 more sources

Nonlinear Transient Field Problems with Phase Change using the Boundary Element Method [PDF]

open access: yes, 2003
Peer ...
M.E. Honnor   +16 more
core   +3 more sources

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